IPv6 Multimedia Adaptive applications in the Framework of ... · EU MIND Project •EU IST Programme •Jun01 - Nov02 •Operators •Manufacturers •University/SME •Follow on

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File name: ruiz-E6IX-6NET-Workshop.pptOriginator: Pedro M. Ruiz (ASSA)

IPv6 Multimedia Adaptive applications in the Framework of the MIND project IPv6 Multimedia Adaptive applications in the Framework of the MIND project

Pedro M. Ruiz Project Manager

Agora Systems S.A

Joint 6NET/Euro6IX WorkshopLimerick, June 2002



OutlineOutline

• The MIND consortium• MIND’s Work Package 6• Key concepts which WP6 deals with• Mobility Management• Adaptive applications• Some preliminary results• Conclusions and future work



EU MIND ProjectEU MIND Project

•EU IST Programme•Jun01 - Nov02•Operators•Manufacturers•University/SME•Follow on from BRAIN



AAL2Switching

Cloud

Global Internet

SP Server Farm

ADSL

IGSNGateway

BRAIN/MIND: VisionBRAIN/MIND: Vision

BRAINAccess Routers

MIND Wireless RoutersHiperlan/802.11

Bluetooth

VerticalHandover

SIP Proxy ServerBilling AAA

IP backboneDiffServIP - macro mobility managementUMTS

IP-based micro-mobility

ISSL QoS

MIND Mobile Routers

Hiperlan



What is MIND WP6 about?What is MIND WP6 about?

• Trials of the most interesting concepts coming from BRAIN

• IPv6 is a key element for our trials• Some of the most important key concepts are:

– IPv6 for interconnection of the testbeds– Vertical handover in many flavours– Micro-mobility comparison (BCMP, HMIP, etc)– QoS for mobility scenarios– Service level concepts (Content adaptation, adaptive

applications, user-perceived QoS, etc)



IPv6 Testbed InterconnectionIPv6 Testbed Interconnection

NativeIPv6 Budapest

Ericsson

BerlinT-Systems

LondonKCL

MadridAgora Systems

• At least two sites• Demonstrate

– Macromobility– Micromobility– Vertical handover

UMTS/GPRS– End to end QoS

• Connectivity to be decided– 6Bone (not native )– Other IST project– Private ISDN

connections



MIND deals with handovers at different layersMIND deals with handovers at different layers

• Complexity is moved from the application to the middleware

Mobility Management

Application Layer

Middleware for QoSMobility Management



Mobility ManagementMobility Management

• Macro-mobility solutions (MIPv6) does not offer enough performance for some kinds of applications

• Micro-mobility solutions are needed:– HMIPv6– Cellular IPv6– BCMPv6

• These approaches are complementary• In BRAIN the BCMP protocol for micro-mobility

support was designed



BRAIN Candidate Mobility ProtocolBRAIN Candidate Mobility Protocol

MH

BAR BAR BAR

BAR

ANP

MH MH

ANP ANP

BMG BMG

BAR BAR BAR

BAR

ANP ANP ANP

BMG BMG

BAR

BARBAR BAR

ANP ANP ANP

BMG BMG

• Access Routers (ARs) are located at the access network edge and offer IP connectivity, default router to the Mobile Hosts (MHs) that they serve

• Anchor Points (ANPs) are located ‘inside’ the access network, own & allocate addresses, authenticate users, maintain user records,tunnel packets to Access Routers

• Mobility Gateways (MGs) standard border routers (no mobility specific functionalities), distributing traffic to correct ANPs.



Vertical handover trialsVertical handover trials

• There are three types of vertical handover– No coupling– Loose coupling– Tight coupling

• Only some of them will be tested in WP6 testbeds

• The bandwidth may suddenly suffer abrupt changes

CoreNetwork

WLAN GPRS/UMTS



Drivers for adaptive applicationsDrivers for adaptive applications

• A complete E2E QoS solution requires local resource management as well

• Terminals are heterogeneous and media adaptation capabilities are required

• In wireless environments network conditions are not always under control

• User-perceived QoS can be improved making the application to adapt to the current conditions– Network conditions– QoS violations – Not enough local resources (eg. CPU, Memory, etc.)



User-perceived Audio QualityUser-perceived Audio QualitySpeech Quality

1 2 4 8 16 32 64MOS

1

2

34

5Excellent

Source: IP Telephony, Olivier Hersent et al.

Good

Fair

Bad

LPC coders

Hybrid coders

Waveform coders

Poor



Video Quality vs. BandwidthVideo Quality vs. Bandwidth

Non-linear user

perception

1190 Kbps

300 Kbps210 Kbps

140 Kbps

70 Kbps

50 Kbps

30 Kbps

10 FPS, SQCIF both for MJPEG and H.263



Adaptive applicationsAdaptive applications



QoS is more than Nw. Layer QoSQoS is more than Nw. Layer QoS

Sessions

Applications

END SYSTEM END SYSTEM

Core Network

Access Network

Network QoS Negotiation

Access Network

EndSystem

QoS

EndSystemQoS

User User

End-to-end communication

End-to-end QoS

Sessions

Applications

Negotiation

I/O Device

OS

Capabilities

I/O Device

OS

Requirements Requirements

Protocols Protocols



Architecture for ISABEL-lite-v6Architecture for ISABEL-lite-v6• QoS wrapper and BCMP Interfaces

QoS

Any physical/link layer

IP Layer

Mobility Management

UDP Layer

RTP/RTCP

Audio Vídeo

TCP Layer

SIP Web ...

SDP

SessionMgmt

IP LayerUDP Layer UDP LayerRTP/RTCP RTP/RTCP

ATx VTx VTx ATx

CTRL

ADAPT

I

IP Layer

physical/link physical/link



ISABELv6 combined scenariosISABELv6 combined scenarios

• Interoperation between ISABELv6 and ISABEL-lite is expected– Only minor interaction models need to be sorted out

Micro-mobilityDomain FS



ResultsResults

• We’ve just started to perform trials• Concept applied to different scenarios

– Vertical handover– Macro-mobility scenario– Ad hoc networks

• Interim results are quite promising



Handover scenario (No adaptation)Handover scenario (No adaptation)Norma l beha viour (Ba ndwidt h & P ac ke t s lost )

0

50

100

150

200

0 10 20 30 40 50 60 70 80 90 100

Time(s)

0100200300400500600700800

B a ndwidth P a c ke t s Los t



Handover scenario (Adaptation)Handover scenario (Adaptation)Ada pt ive be ha viour (Ba ndwidt h & P a c ke t s lost )

0

2040

6080

100

120140

160180

200

0 10 20 30 40 50 60 70 80 90 100

T im e ( s )

0

50

100

150

250

B a ndwidth P a c ke t s l os t

200



Conclusions and future workConclusions and future work

• Many of the contributions from BRAIN are to be tested in MIND’s WP6 having IPv6 as a requirement

• Initial tests make us expect very promising results (e.g. Terminal adaptation)

• Most of WP6 work is now focused on:– Interconnection of local testbeds– Extension of ISABEL-lite with QoS and mobility

interfaces– Extensive testing of the different concepts



AcknowledgementsAcknowledgements

This work has been performed in the framework of the IST project IST-2000-28584 MIND, which is partly funded by the European Union. The authors would like to acknowledge the contributions of their colleagues from Siemens AG, British Telecommunications PLC, Agora Systems S.A., Ericsson AB, France Télécom S.A., King's College London, Nokia Corporation, NTT DoCoMo Inc, Sony International (Europe) GmbH, T-Systems Nova GmbH, University of Madrid, and Infineon Technologies AG.

http://www.ist-brain.orghttp://www.ist-mind.org

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IPv6 Multimedia Adaptive applications in the Framework of ... · EU MIND Project •EU IST Programme •Jun01 - Nov02 •Operators •Manufacturers •University/SME •Follow on